David Penfold 
When seven German journalist students do a better job of tracking down the sources of the drone flights over Europe than the security services...
jomo@davep the article states that the security services are aware of it.
Anyways, one should take this with a grain of salt. The paper that published the story, Bild, is a German tabloid known for questionable journalism and ethics, publishing gossip, fear, hatred, sensationalism, and naked women. The author of the linked post is obviously marketing this as a success story for his training service, the actual content seems mostly copied and translated from the Bild story.
@davep I don't want to downplay the findings but it also wouldn't surprise me at all if Bild just got all the info from the leaked document, pasted the names into vesseltracker, had a failed attempt at interviewing the russian captain and then sold this off as their own amazing discovery.
Stephan Eggermont@StOnSoftware @jomo They had already done OSInt training.